29-Cu- 65 NAIG,MAPI EVAL-MAR87 N.Yamamuro,T.Kawakit DIST-MAY10 20080724 ----JENDL-4.0 MATERIAL 2931 -----INCIDENT NEUTRON DATA ------ENDF-6 FORMAT HISTORY 87-03 Evaluation was performed for JENDL-3. 87-05 Compiled by K.Shibata (jaeri). 93-09 JENDL-3.2. (3,1),(3,2),(3,102) modified by T.Nakagawa(jaeri) (12,102),(15,102) modified by S.Igarasi(nedac) Compiled by T.Nakagawa (ndc/jaeri) ***** Modified parts for JENDL-3.2 ******************** (2,151) Upper boundary energy changed to 50 keV (3,1),(3,2) 50 keV - 153 keV (3,102) 50 keV - 20 MeV (4,16-32),(4,91) Taken from JENDL fusion file (5,16-91) Taken from JENDL fusion file (12,102),(15,102) *********************************************************** ------------------------------------------------------------- JENDL fusion file /1/ (as of Sep. 1993) Evaluated by B.Yu(ciae) and S.Chiba (ndc/jaeri) Compiled by B.Yu Cross sections were taken from JENDL-3.1. mf=6 (ddx's) of mt=16, 22, 28, 32 and 91 were created with f15tob program /1/. Modified Kumabe's systematics /1/ was used. The precompound/compound ratio was calculated by the sincros-II code system/2/. Optical-model, level density and other parameters used in the sincros-II calculation are described in ref./2/. Level schemes were determined on the basis of ENSDF/3/. ------------------------------------------------------------- 00-10 Revised for JENDL-3.3 by K. Shibata (jaeri). ***** Modified parts for JENDL-3.3 ************************ (1,451) Comments modified (3,1) Above 50 keV (3,2) Re-calculated. (3,203-207) Calculated. (3,251) Deleted. (4,2) Transformation matrix deleted. (4,16-32),(4,91) Deleted. (5,16-32),(5,91) Deleted. (6,16-32),(6,91) Taken from JENDL fusion file (6,203-207) Taken form JENDL fusion file. ************************************************************* 08-07 Revised for JENDL-4 by K. Shibata (jaea) ***** Modified parts for JENDL-4 ************************** (1,451) Comments modified (3,1) Between 50 keV and 1.1 MeV (3,2) Re-calculated (4,2) Newly calculated ************************************************************* mf=1 General information mt=451 Descriptive data and dictionary mf=2 Resonance parameters mt=151 Resolved resonance parameters for MLBW formula parameters were mainly taken from the work of Mughabghab et al./4/ Resonance region : 1.0e-5 eV to 50 keV. Upper boundary of the resonance region was changed from 153 keV of JENDL-3.1 to 50 keV because serious level missing was found above 50 keV. Scattering radius: 6.70 fm Calculated 2200-m/s cross sections and res. integrals 2200-m/s res. integ. elastic 14.073 b - capture 2.168 b 2.22 b total 16.242 b - mf=3 Neutron cross sections mt=1 Total 50 keV to 1.1 MeV: Based on the measured data of Pandey et al./5/ 1.1 to 20 MeV : Least-squares fit to the experimental data of natural element /7,6,8,9,10/. mt=2 Elastic scattering (total) - (reaction cross section) mt=4,51-70,91 Inelastic scattering Statistical model calculations were made with casthy/11/ below 3 MeV by taking account of competing processes, and with gnash/12/ above 3 MeV including preequilibrium effects. The direct-process component was considered for the levels of mt=51-54,64,91 by the DWBA calculations with dwuck/13/. The level scheme was taken from ref./14/. no. energy(MeV) spin-parity g.s. 0.0 3/2 - 1. 0.7706 1/2 - 2. 1.1160 5/2 - 3. 1.4820 7/2 - 4. 1.6230 5/2 - 5. 1.7250 3/2 - 6. 2.0940 7/2 - 7. 2.1070 5/2 - 8. 2.2130 1/2 - 9. 2.2780 7/2 - 10. 2.3290 3/2 - 11. 2.4070 9/2 - 12. 2.5260 9/2 + 13. 2.5330 5/2 - 14. 2.5340 7/2 + 15. 2.5930 1/2 - 16. 2.6440 9/2 - 17. 2.6500 5/2 - 18. 2.6550 5/2 - 19. 2.6690 5/2 - 20. 2.7530 9/2 + Levels above 2.80 MeV were assumed to be overlapping. The neutorn optical potential parameters used are as follows/15/ (in the units of MeV and fm): V = 51.725 - 0.447*E r0 = 1.221 a0 = 0.683 Ws = 8.44 + 0.055*E rs = 1.223 as = 0.507 (derivative Woods-Saxon form) Vso= 8.0 rso= 1.221 aso = 0.683 mt=16,22,28,32,103,104,107 (n,2n),(n,n'a),(n,n'p),(n,n'd),(n,p) (n,d) and (n,a) cross sections Calculated with gnash/12/. Optical potential parameters for proton, alpha-particles and deuteron were as follows/16,17,18/. proton V = 59.11 - 0.55*e r0 = 1.25 a0 = 0.65 Ws = 10.4 rs = 1.25 as = 0.47 Vso= 7.5 rso= 1.25 aso= 0.47 alpha-particle V = 164.7 r0 = 1.442 a0 = 0.52 Wv = 22.4 rv = 1.442 av = 0.52 rc = 1.30 deuteron V = 106.69 r0 = 1.05 a0 = 0.86 Ws = 13.92 rs = 1.43 as = 0.704 Vso= 7.0 rso= 0.75 aso= 0.5 rc = 1.3 mt=102 Radiative capture cross section Below 1.505 MeV, calculation with casthy was adopted. A value of 0.001 was employed for the gamma-ray strength function for s-wave neutrons. Above this energy, cross section curve was based on the experimental data/19, 20, 21/. 0.5mb was assumed at 14 MeV. mt=203 Total proton production Sum of mt=28 and 103. mt=204 Total deuteron production Sum of mt=32 and 104. mt=207 Total alpha production Sum of mt=22 and 107. mf=4 Angular distributions of secondary neutrons mt=2 Calculated with POD/22/ using the coupled-channel optical potentials obtained by Kunieda et al./23/ mt=51-70 Calculated with casthy for equilibrium process. The components of the direct process were added to the levels of mt=51-54,64 by using the dwuck code /13/. mf=6 Energy-angle distributions of secondary particles mt=16, 22, 28, 32, 91, 203, 204, 207 Taken from JENDL fusion file. mf=12 Photon production multiplicities mt=16,22,28,32,91,103,104,107 Calculated with gnash. mt=51-70 Transition probabilities are given. mt=102 Obtained from energy balance. mf=14 Photon angular distributions mt=16,22,28,32,51-70,91,102,103,104,107 Assumed to be isotropic. mf=15 Photon energy distributions mt=16,22,28,32,91,103,104,107 Calculated with gnash. mt=102 Calculated with casthy. References 1) Chiba S. et al.: JAERI-M 92-027, p.35 (1992). 2) Yamamuro N.: JAERI-M 90-006 (1990). 3) ENSDF: Evaluated Nuclear Structure Data File, BNL/NNDC. 4) Mughabghab S.F., Divadeenam M. and Holden N.E.: "Neutron Cross Sections, Vol. 1, Part A", Academic Press (1981). 5) Pandey M.S. et al.: Phys. 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Rev. 131, 745 (1963). 17) McFadden L. and Satchler G.R.: Nucl. Phys. 84, 177 (1966). 18) Lohr J.M. and Haeberli W.: Nucl. Phys. A232, 381 (1974). 19) Zaikin G.G. et al.: Atom. Energija, 10, 508(1961). EXFOR40248 20) Johnsrud A.E. et al.: Phys. Rev., 116, 927 (1959). EXFOR11675 21) Voignier J. et al.: Nucl. Sci. Eng., 93, 43(1986). EXFOR22006 22) Ichihara A. et al.: JAEA-Data/Code 2007-012 (2007). 23) Kunieda S. et al.: J. Nucl. Sci. Technol., 44, 838 (2007).